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Extensions / Conversions in Peterborough (19)

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  • Sponsored
    Transparent Group Logo

    Transparent Group

    8.71

    (12 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Partition Walls
    Concrete Garages
    Call
  • Transparent Group Logo

    Transparent Group

    8.71

    (12 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    Basement / Cellar Conversions
    Partition Walls
    Garage Conversions
    Call
  • JV Homes Construction Limited

    9.88

    (69 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    Emergency Builder Service
    Property Maintenance / Repair
    Brick / Concrete Structural Repairs
    Call
  • VAI INTERIORS LTD Logo

    VAI INTERIORS LTD

    9.90

    (10 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    Cladding
    Concreting
    New Builds
    Call
  • Ark East Anglia Ltd Logo

    Ark East Anglia Ltd

    (0 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    Agricultural Building
    Concreting
    Foundations
    Call
  • Haddon Renovations Logo

    Haddon Renovations

    9.94

    (13 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    Equestrian Stable
    Garage Conversions
    Partition Walls
    Call
  • Wayne Robinson Logo

    Wayne Robinson

    9.61

    (6 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    Emergency Builder Service
    Brick / Concrete Structural Repairs
    Concreting
    Call
  • L&M Building Services Logo

    L&M Building Services

    9.17

    (43 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    Refurbishments
    Workshop Design / Construction
    Structural Steels
    Call
  • Jevgenijs Lapins Logo

    Jevgenijs Lapins

    9.31

    (18 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    Repair and Listed Building Specialist
    Wall Tie Replacements
    Emergency Builder Service
    Call
  • CS Carpentry & Building Services Logo

    CS Carpentry & Building Services

    9.97

    (145 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    General Building
    Sustainable Construction
    Steel Work Design
    Call
  • K&R Construction Logo

    K&R Construction

    9.87

    (5 reviews)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    Car Ports
    Wall Tie Replacements
    Property Maintenance / Repair
    Call
  • Stone Heart Build LTD Logo

    Stone Heart Build LTD

    10.00

    (1 review)

    Operates in Peterborough

    Services & skills
    Builder
    Extensions / Conversions
    New Builds
    Garage Conversions
    Repair and Listed Building Specialist
    Call

Conversion and extension builders in Peterborough

Planning a loft conversion, garage makeover or full house extension in Peterborough? You’re in the right place. Whether you’re adding space for a growing family, upgrading your layout or increasing your home’s value, we can help you find the right tradesperson for the job.

Find extension and conversion builders in Peterborough

Every builder on Checkatrade passes up to 12 checks before they appear in your search. You can read verified reviews, compare services, and even post your job to get quotes straight to your inbox, all in a few clicks. That’s how we help homeowners like you get a job done right.

What to expect from hiring an extension or conversion builder in Peterborough

Our checked tradespeople in Peterborough cover a wide range of projects, including:

  • Single or double-storey house extensions

  • Kitchen and diner extensions

  • Loft, attic, garage or basement conversions

  • Garden room extensions

  • Utility room extensions

  • Over-garage extensions and side returns

Extension and conversion build costs in Peterborough

Costs of extensions and conversions vary depending on size, structure and spec, but here's a rough guide:

Extensions:

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Loft conversions:

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Garage conversions:

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Conservatory roof conversions:

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Need help calculating costs? Use our Job Value Estimator Tool for a bespoke cost estimate.

What to check before you hire:

  • Are drawings or planning permissions needed?
  • Are they familiar with building regs?
  • Is the quote fixed or flexible?
  • Does it cover materials and project management?

Most builders will include prep, construction, electrics, plumbing and final finishes in their quote, but always double-check. Timelines range from a few weeks for simple jobs to several months for bigger builds.

Extension and conversion builders in Peterborough: Homeowners vs renters

Homeowners:

You’re in charge of the project. That means hiring the builder, securing permissions, and paying for the work. You may need:

  • Planning permission (especially for double-storey builds or changes near boundaries)

  • Drawings from an architect or structural engineer

  • Building regs approval

If you’re not sure where to start, speak to a local builder or post your job to get help with the process.

Renters:

You’ll usually need your landlord’s approval to make any big changes. In most cases, your landlord will be the one arranging and paying for structural changes like loft conversions or extensions. That said, it’s worth flagging ideas if you think they’ll improve the property, especially if it means longer tenancies or fewer repairs.

Emergency extension or conversion help in Peterborough

Extensions and conversions are big projects, but sometimes, things go wrong and need sorting fast. Common urgent issues include:

  • Leaks in newly converted lofts

  • Structural cracks or shifting

  • Faulty electrics or plumbing in newly added rooms

  • Incomplete work by previous builders

Facing an emergency in Peterborough? Enter your postcode or post a job to find emergency services in your area.

Find the right extension or conversion specialist in Peterborough

Looking for a builder to help with:

  • Rear house extensions
  • Kitchen extensions
  • Garage conversions
  • Loft or attic conversions
  • Garden room builds
  • Basement or cellar conversions
  • Conservatory roof upgrades
  • Utility or porch extensions

Start your search now


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